Senior GUI Developer - Real-Time Trading Applications Location: London 'Hybrid 2-3 days in office' Job Type: 6 months Contract Industry: Financial Services / Trading Technology Are you a seasoned GUI developer ready to lead high-impact projects in a fast-paced, global trading environment? We're seeking a Senior GUI Developer to spearhead the design and implementation of a real-time Limit Order Application at the core of a cutting-edge eFX trading platform. This is a critical, senior-level role for someone with deep technical expertise in GUI development, real-time systems, and financial workflows. What You'll Do: Lead the end-to-end design, development, and deployment of a next-generation GUI for global FX limit order trading. Work closely with traders, quantitative analysts, and backend engineers to build robust, real-time interfaces for order entry, modification, and monitoring. Ensure high performance, reliability, and usability under live trading conditions. Evolve and maintain GUI architecture and component libraries to support scalability and responsiveness. Mentor junior developers and foster a high-performance engineering culture.

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